He already knows how to bring up the command prompt, John.
Anyway, Ame, Ghost is saying to do the following in the prompt:
cd\
cd Program Files\Tremulous
Tremulous.exe
and running it that way. If you've got a different path for Trem from C:\, change the above. If you've got it on say, your F: drive, you'd add F: to the top of that list of things, above cd\
Also, just so I understand, does the Trem console create a dump in the prompt after it's done running, Ghost?